code: def __getitem__(self, key):
      if not self.containsKey(key):
          raise KeyError("no key found named '" + key + "'")
  
      return self.cppPool.__value__(key, self.cppPool.__keyType__(key))
  
imports: import numpy
  from six import iteritems
  from .None import _essentia
label_desc: Use image node_id 6 for calling the Pool obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self